Combined temperature regulator and circuit breaker for irons



July 6 1926.

J. A. DELMARQUE COMBINED TEMPERATURE REGULATOR AND CIRCUIT BREAKER FOR IRONS Filed Sept. 1. 1923 2 Sheets-Sheet INVENTOR ATTORNEY July 6 1926.

J; A. DELMARQUE COMBINED TEMPERATURE REGULATOR AND CIRCUIT BREAKER FOR IRONS Filed Sept. 1, 1925 2 Sheets-Sheet 2 ATTORNEY WITNESS:

Patented July 6, 1926 UNITED STATES PATENT OFFICE.

JULES A. DELMARQUE, OF WINNIPEG, MANITOBA, CANADA.

COMBINED TEMPERATURE REGULATOR AND CIRCUIT BREAKER FOR IRONS.

Application filed September 1, 1923. Serial No. 660,559.

This invention relates to a temperature regulator for irons, the general object of the invention being to provide means for indicating the temperature of the iron so that the operator can tell whether the iron is too hot or too cool.

--- Another object of the invention is to prospecifically pointed out in the appended vide means for automatically controlling the temperature and to adjust such means to keep the iron at any desired temperature.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a plan view of an iron provided with my invention.

Figure 2 is a section on line 22 of Figure 1.

Figure, 3 is a section on line 3-3 of Figure 2.

Figure 4 is a section on line 4-4 of Figure 1.

Figure 5 is a diagrammatic view of the circuit.

Figures 6 and 7 are detail views.

In these views 1 indicates the body of the iron which is provided with the chamber 2 in which is located the heating elements 3, these elements being electrically connected with the posts 4 which are adapted to receive the usual socket which is electrically connected with a source of supply. In carrying out my invention I secure a frame 5 in the chamber 2 and, this frame rotatably supports a shaft 6 which passes through the top of the iron into a casing 7, the top of which is of transparent material, as shown at 8, and in which is located a dial 9 with which cooperates a finger 10 which is secured to the upper end of the shaft 6. A spiral spring 11 has one end connected with the shaft and its other end is connected to the projecting part 12 of the frame so that the expansion and contraction of the spring will act to rotate the shaft and thus move the hand or finger of the dial to ihdicate the temperature within the body of the iron. Thus the operator can tell when to turn on or turn oii' the current to keep the iron at the desired temperature.

In order to make the device automatic I secure a grooved plate13 to the top of the iron, a block 14 having a dove-tail part sliding in one groove and a block 15 having a similar part sliding in the othergroove. A contact plate 16 is carried by the block 14 and this plate is located in the circuit of the iron while a. contact member 17 is carried by the block 15 and this member is also arranged in the circuit of the iron. The member 17 is provided with a hollow boss 18 in which is located a plun er 1%? which is pressed outwardly by a spring 20, the spring holding the plunger against the block 14 so'that when the plunger is in engagement with the contact plate 16 the circuit to the heating elements will be completed but when the block 16 has been moved to cause the plunger 19 to engage the insulated part of the block 13 the clrcuit will be broken. The block 14 is moved by the rotation of the shaft 6 by bein connected to the shaft by the arm 21 and the link 22. Thus the movement of the shaft willvbe communicated to the block 13. A turn screw 23 passes through the rear of the. iron' and is connected with the block 15 so that said block 14 can be adjusted by turning the screw and thus the temperature at which the circuit is broken can be adjusted.

From the above it will be seen that the operator can readily see the temperature of the iron and that he can set the device so that the circuit will be automatically broken at any desired temperature so that the iron can be kept at any desired temperature.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is 2- 1. A device of the class described, comprising a supporting member, a shaft rotatably mounted therein, a coil spring con-- mentioned contact is adaptedto engage and disengage during the movement of thes liding member.

2. A device of the class described, comprising a supporting member, a shaft rotatahly mounted therein, a coil spring having one end connected With the shaft and its other end to a part of the supporting memher, a pair of sliding blocks in the supporting member, meansfor connecting one block to the shaft, means for manually moving the other block and a contact on each block, the contacts engaging and disengaging each other during the movement of the first block by the shaft and spring.

3. A device of the class described, comprising a supporting member, a shaft rotatably mounted therein, a coil spring having one end connected with the shaft and its other end to a part of the supporting member, a pair of sliding blocks in the supporting member, means for connecting one block to the shaft, means for manually moving the other block, a stationary contact on one block and a spring plunger contact on the other block, the contacts engaging and disengaging each other as the first block is moved by the shaft and spring.

In testimonv whereof I afliX my signature.

JULEs A. DELMARQUE. 

